Top off your brake fluid Check brake fluid monthly.Wipe dirt from the master cylinder lid before you open it. If you need fluid, add the type recommended by your car’s maker. Never substitute other fluids, such as transmission or power-steering fluid. And don’t use brake fluid from a previously opened container. Once exposed to air, brake fluid absorbs moisture and contaminates easily.

Don’t forget the PCV valve The PCV (positive crankcase ventilation) valve is an emissions control device on older cars — check your service manual to see if your car has one.The valve recirculates partially burned gases from the engine’s crankcase to the combustion chamber. Important to a properly functioning engine, the valve should be changed every 30,000 miles (48,000 km) or as specified in your owner’s manual. In addition to helping you get the most from a tank of gasoline, it helps to prevent the buildup of harmful sludge and corrosion.When replacing your PCV valve, be sure you use the correct one or you may damage your engine.

Seal a leaky radiator Save the high expense of a new radiator by trying to seal a leak with a radiator sealer, such as Alumaseal from Gold Eagle Co. Available in powder or liquid form, the product circulates in the radiator until it gets to the hole, where it sets up and fills the hole upon contact with the air. Alumaseal may be used to stop heater core leaks as well.

Lighten up your key chain Does your car key share a chain with a dozen or more other keys? That’s a pretty heavy load hanging off the car key when it’s in the ignition.The weight, combined with bouncing while you drive, can wear out the tumblers inside the ignition and eventually lead to ignition switch failure.To add years of service to your ignition switch, purchase a lightweight key chain that allows you to separate your ignition key from the others. Drive with only the ignition key in your ignition. If your ignition key “sticks” when you try to turn on the car, it’s a warning that your ignition switch is about to fail. Replace it before you get stranded.

Preserve your car during long-term storageIf you are not going to use your car for more than a month, store it properly to prevent unnecessary damage and repairs upon your return.Fill the gas tank to help prevent condensation from accumulating in the gas tank. Add a fuel stabilizer and drive the car around a bit to distribute the additive to engine parts.Wash and wax the car thoroughly to protect the finish.Place a vapor barrier on your garage floor. A 4-mil polyethylene drop cloth will do.Disengage the parking brake to help avoid brake corrosion.Put the car on jack stands to take the weight of the vehicle off the wheels and tires.Disconnect and remove the battery to keep it from draining. Place the battery on a trickletype charger. Or periodically drain the battery, using a small light bulb, and then recharge it with a low-volt charger.Plug the tailpipe with a rag to prevent moist air from infiltrating into it.Car Interior

Care for anti-lock brakes An anti-lock brake system is sensitive to moisture, which can ruin the expensive ABS pump and rot the brake lines from the inside. Since brake fluid attracts moisture, it should be “bled” or purged at least every three years, or as specified in your owner’s manual.

Don’t try to carry too much Never exceed your car’s roof load specifications or weight limits.You can find them in your vehicle owner’s manual. Check the weight limitation of your roof rack as well. Typically the range is from 150 to 200 pounds (68 to 90 kg). That’s the equivalent of eighteen 8-foot 2 x 4s (2.4-meter 38 x 89s) or three sheets of 3/4-inch (17-mm) plywood. If you have to deliver a heavy load from the home or garden center, consider having it delivered. It will save wear and tear on you as well as your car.

Fix bad weatherstripping immediately If your weatherstripping is letting rainwater leak into the interior of your car, take a look at it and decide if you can repair it or if it needs to be replaced. Small leaks can be handled with brush-on seam sealers. Resecure loose sections, not otherwise damaged, with trim adhesive. Torn sections may be repaired with special caulking available at auto parts stores. You may also be able to extend the life of worn-but-intact sections by inserting foam rods, available at automotive stores, into the hollow section of the weatherstripping. If you decide to replace entire sections of gasket, don’t simply buy generic stuff such as you’d use around the house. Buy a product that matches your car’s original weatherstripping — it’s available in a wide variety of profiles from dealerships and automotive mail-order catalogues.

Use your parking brake. Even if you are driving a car with an automatic transmission, use your parking brake regularly, especially if you're parked on an incline. It helps keep the brakes adjusted in the rear of the car and makes them last longer. Do not use your parking brake in the wintertime because your brake will freeze and it will be stuck until it thaws out.

Buy gas at reputable service stations Ask whether the gas you buy is filtered at the pump and if the station has a policy about changing the pump filters regularly. If you get a song and dance, find another gas station. Some stations don’t have pump filters, making you more vulnerable to dirty gasoline. Other stations may not mix alcohol and fuel properly — or worse, water down their product. Find a station you trust and stick to it.

Keep an auto log Keep a pad and pencil in the glove compartment and use them to record your gas fill-ups and mileage. If you notice that your gas mileage worsens, mention it to your service man. It may be an early warning sign that something is wrong with your car.

Clean dash gauges carefully Use a soft damp cloth to lightly wipe dust from the clear plastic lenses on your dashboard. Too much pressure will scratch them. Too many scratches can make it difficult to read your gauges under certain lighting conditions.

Blast mats with the hose When washing your car, drag out the rubber or carpet floor mats and blast them with the hose.This will dislodge dirt particles that, if allowed to build up, will grind holes in your mats. Let the mats dry thoroughly in the sun before reinstalling the

Keep leather from drying out and cracking Leather cars seats are durable and don’t require a lot of maintenance. After a few years, however, the seats can become soiled. Use a leather cleaner to remove dirt and stains.Then apply a leather protectant formulated for pigmented or top-coated grain leather (the leather used for most leather car upholstery). Protectants will resist stains and make the upholstery easier to clean in the future. Choose a protectant that includes conditioners to keep your leather supple

Clean the inside, too Vacuum and sponge your interior every time you wash your car. Dirt particles are abrasive, and spilled liquids, such as soda, can be corrosive.Vacuum your interior thoroughly with a powerful vacuum (small cordless models are generally too weak). Use the appropriate wand heads when vacuuming. The bare metal wand can mar and scratch surfaces. Sponge vinyl surfaces clean with a solution of mild detergent and water.

Buy used tires If you own a car that you plan to drive only for another year, the last thing you want to do is to buy a new set of tires. If it’s time to replace those tires though, it’s really time. Rather than hesitate, buy a set of used tires. Call local tire dealers to see what’s available. You’ll be surprised by how much wear is left in tires that are turned in by image-conscious car owners. Have your tire size handy

Use wheel cleaner Your car’s wheels are down there on the road, taking the brunt of road dirt. Add in the dust that wears off your brake pads and you’ve got a formula for stains that are tough to remove when you wash your vehicle. Car-washing liquid won’t do the job.You need a wheel cleaner specifically formulated to remove such stains. Be sure to buy the correct formulation. Some cleaners are designed for metal wheels, and others for painted or clear-coated wheels.The metal wheel cleaners come in various formulations as well, depending upon whether your metal wheel has a satin, aluminum, or chrome finish. Protect metal wheels with wheel polish, painted wheels with a coat of wax.

Avoid overfilling your crankcase with oil Don’t overfill your engine crankcase with oil. If you do, the oil can rise into the crankshaft, where air bubbles will get churned into the oil.Your oil pump can’t do a good job of circulating oil with air bubbles. The result can be overheating and stress on engine components. Overfilling can also foul your sparkplugs. In fact, overfilling is a bad idea with all automotive fluids.

Test drive-belt tension Check the tension and condition of your drive belt (or, with many cars, multiple belts) every month. Belts that are too tight can wear out the bearings in accessory components, such as AC compressor, water pump, and power-steering pump. Belts that are too loose will wear out faster and may fail prematurely. Perform your examination before you start the car to avoid injury due to a hot belt or moving engine part. Check for tension by pressing in the center of the belt’s longest exposed run while holding a ruler next to it. If you can depress the belt 1/ 2 to 1 inch (13 to 25 mm), but not more or less, the tension is good. If not, adjust the belt tension yourself according to your car’s service manual, or have your dealer or auto repair service do it. Also check for belt damage, such as glazing (often due to oil leakage), fraying, and cracks. If you spot damage, have the belt checked by a pro and replaced if necessary.

Some batteries need water If your battery has vent caps, remove them to check the level of the electrolyte. It should rise 1/2 inch (13 mm) above the battery’s top plates. If it doesn’t, use distilled water to raise the level to 1/4 or 3/8 inch (6 or 10 mm) below the bottom of the vent cap. Don’t use tap water, as it may contain minerals that can damage your battery. Mechanics should check your battery as a part of your regularly scheduled maintenance, but they often skip the procedure. Be sure to ask to have it done.

Don’t fill up if you see the tanker If you happen to see a gasoline tanker filling the tanks at your local gas station, come back another day or go to a different station. As the station’s underground tanks are being filled, the turbulence can stir up sediment. Sediment in your gas can clog fuel filters and fuel injectors, causing poor performance and possibly necessitating repairs.

Fuel Injection Service Performing a fuel injection service not only prolongs the life expectancy of the injectors, but can increase fuel mileage with benefits that far outweigh the cost of the service.

Annual or seasonal complete vehicle inspection Having your vehicle inspected periodically can prolong the life of many major components of your vehicle by diagnosing repair issues beforethey become major problems, but don’t assume that getting your oil changed at a “quick lube” comes with a thorough inspection. Request acopy of the check list and compare for yourself.

Drive with care everyday Being car considerate shouldn’t stop after the break-in. Drive with care every day and your car will reward you with longer intervals without repair.Do not race your car’s engine during start-up.This is a quick way to add years of wear to your engine, especially if it’s cold outside.Accelerate slowly when you begin your drive.The most wear to the engine and drive train occurs in the first ten to twenty minutes of operation.Warming the engine by letting it idle in the driveway is not a smart idea.The engine doesn’t operate at its peak temperature, resulting in incomplete fuel combustion, soot deposits on cylinder walls, oil contamination, and ultimately damaged components.Put less strain on your engine and automatic transmission by shifting to neutral at red lights. Otherwise, the engine is still working to push the car even while it’s stopped.Avoid driving at high speeds and accelerating quickly, especially when it’s very hot or very cold outside. Such driving behavior will result in more frequent repairs.Extend the life of your tires with careful driving. Observe posted speed limits. Avoid fast starts, stops, and turns. Avoid potholes and objects on the road. Don’t run over curbs or hit the tire against the curb when parking. And, of course, don’t burn rubber.When turning your steering wheel, don’t hold it in an extreme right or left position for more than a few seconds. Doing so can damage the power-steering pump.Consolidate your short driving trips. Most of the wear and tear — as well as the pollution your car generates — takes place in the first few minutes of driving. Doing several errands at once, during low traffic hours if possible, will keep your engine happier longer.

Use upholstery cleaners on soiled seats The same upholstery cleaners you use at home can be used on your car’s upholstery. Use them sparingly, however, to avoid saturating the fabric. Use a clean cloth to wipe away the foam. On velour seats, brush the fibers gently to avoid matting them and to preserve the original texture of the fabric.

Place a towel under baby seats All manner of food bits and liquids can accumulate under a baby seat, where they can permanently stain the upholstery. Place a sheet of heavy plastic and an absorbent towel under the seat to prevent damage, and re-secure the seat according to the manufacturer’s directions.

Fix small windshield chips Got a rock chip, crack, or ding in your windshield? Bring your car to a windshield repair shop. For far less cost than replacing the windshield, they can fix chips and cracks, even quite long ones. The repairs not only keep the chips and cracks from spreading and restore structural integrity, they also improve clarity.

When temperatures affect tire inflation When outside temperatures drop or soar, tires tend to lose pressure. A drop of 10 degrees F (6 degrees C), in fact, will decrease a tire’s air pressure by 1 or 2 pounds.Tires can lose even more air in hot weather. Under-inflated tires can result in accelerated wear and poor driving performance. If you live in a place where temperatures vary a lot, check your tire pressure often and add air as needed.

Run your AC in winter To keep your car’s air-conditioning system fit for the next warm season, run it a few times throughout the winter. This will prevent moving parts in the compressor from seizing. Also, circulating the refrigerant will help keep the seals soft and pliant.

Antifreeze maintenance Over the years, coolant-antifreeze breaks down and becomes susceptible to contamination, which will shorten the life of your vehicle. Follow your owner’s manual to get old antifreeze out of your car’s cooling system. Three years will be the breaking point for most antifreeze products, but it could happen sooner with cheap products. This bit of maintenance protects your radiator, keeps your heater from failing, and helps keep the car’s thermostat in working order.

Transmission maintenance Cars need fluid replaced in the automatic transmission every few years or 25,000 miles, depending on your make and model. Vehicles you use to tow need the fluid replaced more frequently. If you drive stick, manual transmissions need lubricant changes every 50,000 miles. Synthetic motor oil is the most recommended option for maintaining your vehicle longer, but your owner’s manual will have details for the particular model.